Pin feeding device



April 5, 1938. H. s. DYBVIG 2,112,333

PIN FEEDING DEVICE Filed April 12, 1935 5 Sheets-Sheet 1 April 5, 1938. H, DYBVIG 2,112,833

PIN FEEDING DEVICE Filed April 12, 1955 s Sheets-Sheet? April 5, 1938. H. G. DYBVIG 2,112,833

PIN FEEDING DEVICE Filed April 12, 1935 I5 Sheets-Sheet 3 Patented Apr. 5, 1938 UNITED STATES PIN FEEDING DEVICE Henry G. Dybvig, Dayton, Ohio, assignor to John Q. Sherman, Dayton, Ohio Application April 12, 1935, Serial No. 16,008 23 Claims. (01. 197-133) This invention relates to writing machines and particularly to positive feedfor advancing the record material through the machine. In the Sherman patent No. 2,000,649 and in a copending application to Sherman and Dybvig, Serial No. 12,206, filed March 21, 1935, pin wheel feeding devices have been shown wherein the pins advance into and leave the record material substantially along the radius of curvature thereof, so as to prevent mutilation or tearing of the record material, thereby producing a feed for the record material that feeds the same in aligned relation. When the feeding pin enters the record material along the radius of curvature, the feeding pin extending substantially coincident with the radius of curvature during the effective feeding operation, the paper may be held loosely in contact with the feeding pins without frictional engagement.

In the present embodiment it is not necessary to loosely hold the record material in contact with the feeding pins, as the feeding pins have been provided with an enlarged head or an outwardly extending projection which engages the record material. The record material is preferably-provided with a tapering aperture or an aperture having a reduced portion. This requires a movement of the feeding pin which permits the feeding pin to enter the record material through an arcuate path, permitting the enlarged portion or extension of the pin to move through an enlargement of the aperture in the record material, the pin, after passing through this enlargement, moving into the reduced portion so as to permit the extension to overhang the record materiaLIthe extension moving to loosely hold the record material in position.

Small round feed holes as now known to the art may be used when hooked-shaped feeding pins 4.0 are used, the hooked ends of the feeding pins passing through the holes to hold the record material loosely over the feed pins.

An object of this invention is to provide'a pin wheel feeding device wherein the pins hold the record material in engagement therewith.

Another object of this invention is to provide a pin feeding device wherein the pins'a're provided with means for loosely engaging the record material to hold the same in position.

Another object ofthis invention is to provide record material having apertures that will permit the use of a feeding pin having means for loosely holding the record material in position.

Another object of this invention is to provide a pin wheel feeding device that is cheap, that is efiicient, dependable and that will accurately feed superposed strips of record material in aligned relation past writing position.

Another object of this invention is to provide feeding pins provided with hooks for engage- 5 men't with the record material.

With the above primary and other incidental objects in view, as will more fully appear in the specification, the invention consists of the features of construction, the parts and combinations 10 thereof, and the mode of operation, or their equivalents, as hereinafter described and set forth in the claims.

Referring to the drawings, Fig. l discloses a perspective view of a preferred modification of a 15 feed roll, provided with feeding pins. 7

Fig. 2 discloses a transverse sectional view taken substantially on the line 22 of Fig. 1.

Fig. 3 is a sectional view also taken substantially on the line 2-2 of Fig. 1 after the feed- 20 ing device has been moved into inoperative position.

Fig. 4 discloses a longitudinal view of the modification disclosed in Fig. 1.

Fig. 5 discloses a sectional view of another mod- 25 ification embodying a feeding device for feeding record material traveling along a straight path.

Fig. 6 discloses a fragmentary view of the record material.

Fig. '7 shows a feeding pin drawn to an en- 30 larged scale as used in the modification disclosed in Figs. 1 and 5.

Fig. 8 discloses another modification wherein a straight feeding pin swinging into engagement with the record material has been disclosed. 35

Fig. 9 shows the feeding pin disclosed in'Fig.

8 drawn to a larger scale.

In Figs. 10, 11, 12 and 13 another modification has been disclosed wherein Fig. 10 shows a cross sectional view taken substantially on the 40 line l0-l0 of Fig. 13.

Fig. 11 discloses a cross sectional view showingv the cam controlling the longitudinal movement of the pin with respect to the individual pin support. 1 45 Fig' 12 is a sectional view-showing the cam controlling the swinging movement of the feeding pin'.

Fig. 13 is a longitudinalsectional view of one end of a feed roll or platen, showing the arrangement of the feeding pin mounting.

Fig. 14 is a transverse sectional view of another modification. r

Fig. 15 is a longitudinal section view taken along the line ll-IS of Fig. 14. a

Fig. 18 is a perspective view of the feeding pin used in the modification shown in Figs. 14 and 15.

Fig. 17 shows record material adapted for use with the above modification.

Fig. 18 shows a transverse sectional view of another modification.

Figs. 19 and 20 show perspective views of the feeding pins used in the modification shown in Fig. 18.

Fig. 21 is a detail perspective view of the end collar used in the modification shown in Fig. 19.

housing 2., provided with a transverse wall 22 ro-' tatably mounted upon a tubular sleeve II, which will be more fully described later.

The wall 22 has pivotably mounted therein a pintel ll. supporting a feeding pin 28 provided with a stem substantially T shaped including the outwardly projecting extensions ll. A shank I! integrally united with the lower portion ofthe sternllisarrangedtoengageacamufixedly supported upon the tubular sleeve 24. The housing I. is provided with a substantially T-shaped aperture ll, through which the head of the T-shaped pin is arranged to swing from the "in" position shown at A in Figs. 2 and 3 to the out position 3 shown in each ofthese figures and also shown in Fig. 4.

In use of the T-shaped pin, round apertures cannot be used satisfactorily unless the pins are either mounted extremely far apart, which is ob-' The maximum width of the aperture at 44 is greater than the distance from center to center.

of adiacent holes. This is essential if T-shaped Pins are to be used, as the minimum distance forming bridges ll between the holes must be sufficientiy great to permit the aligning and feeding of the record material by the stems 2i engaging the same without stripping the holes. Ii round holes were to be used, as shown in dotted lines I, the entire margin I! would be severed from the main portion IO and there would be no bridges between the apertures for engagement of the feeding pins.

The pins 20 normally held in folded position by springs I! are projected to the radial or erect position when the shank 82 contacts the cam 34 which swings the pin outwardly. Immediately upon the shank clearing-the cam 34 the pin 28 snaps into the in or folded position within the platen or feed roll II.

In Figs. 1 and 2 the feeding pins have been disclosed in operative position. By rotating the sleeve 24 and the earns 34 the'pins' may be projected beyond the periphery of the roll or platen II in a position out of engagement with the record material. as shown in Fig. 8 and similar to the operative andv inoperative positions more fully described in the Sherman copending Patent No. 2,000,649 referred to above. The pin feeding devices may be locked in either operative or inoperative positions by a mechanism similar to that shown in the Sherman application.

Referring to the modification disclosed in Fig. the same type-of pin as disclosed in Figs. 1, 2, 4 and 7 has been used; but mounted upon a continuous chain 80, trained over the sprockets O2 and 64. The pins 29 are projected to the "on position by a cam 66 underlying a portion of the chain 6|, during which time the pins a 'e projected into engagement with the record mate al to feed the same in a straight path. As soon as the pins pass beyond the cam 60 springs 80, similar to springs I. shown in Fig. 4, retract the pins out of engagement of the record material.

In the modification disclosed in Figs. 8 and 9 a pin ll without the extensions 3. has been shown, which may be used either with record material having round or oblong apertures. In this modification the cam 34 controls the path of' movement of the shank 32 when in engagement therewith.

Referring to the modification disclosed in Figs.

to 13 inclusive, the feeding pins have been given a slight movement along the radius of curvature when in engagement with the record material, so as to loosely hold the record material in contact with the roll or platen i0. 1

In this modification individual pin mountings 80 are pivotally mounted at 82 in the wall 22, supporting the housing 20. The feeding pin 04 has a stem .6 located in a suitable recess provided therefor in the individual mounting Iii. A helical spring I. best seen in Fig. 10 biases the pins inwardly towards the center of the roll ll, this inward movement of the pin being limited either by the projection 90 carried by the pins engaging the mounting II, or by a cam 92 fixedly mounted upon the sleeve 24.

Each pin mounting 80 is provided with heels M engaging a cam 90 which controls the angular position of the pin. The pin mounting, together with the pin, is biased in -a counter-clockwise movement as viewed in Figs. 10 and 11, by a suitable spring shown in Fig. 13. As the roll or platen llrotates, the pin mountings "Land the pins 86 rotate therewith. The heels '4. when entering into engagement with the tangential portion I" of the cam 96, swing the pin 88 from the folded position into engagement with the record material. Immediately upon the heel 94 engaging the tangential, portion 100 of the cam 96 the inner end of the. pin engages'the cam 92, which projects the pin outwardly with respect to the individual pin mounting 80, so as to urge the pin outwardly against the force of the spring 1. to clear the record material and swing into engagement with the leading edge thereof. As the platen or mil ll rotates the inner end of the pin drops into engagement with the arcuate depressed por- The extensions 30, loosely engaging the record material, permit the use of this feeding device without a separate means for record material in engagement with the platen or feed roll it and engagement with the record material.

As the platen is rotated a hump Ill in the cam 02 projects the pin outwardly where it is in readiness to be orientated or swunginto inoperative position upon the heel 94, clearing the extension of the cam 96, at which time the pin snaps into the down or folded position within the platen.

As the cams 92 and 80 are fixedly attached-to the sleeve 24, the pins may be projected beyond the roll or platen I and in a position out of engagement with the record material much the same as disclosed in Fig. 3 and disclosed in Shermans copending application Serial No. 542,855.

Instead of T-shaped pins being used, any suitable pin provided with a head or laterally extending projectionseither fixedly attached to the pin or movably mounted, may be used within the purview of the invention. Likewise, the pins need not necessarily fold into the platen rearwardly with respect to the direction of travelof the paper. Any other movement accomplishing the same result could be used.

Referring to themodification disclosed in Figs. 14 to 16 inclusive, the feeding pin H0 is provided with a shank II2 pivotally mounted in the end wall H4 and biased in a counterclockwise direction, as viewed in Fig. .14, by a spring H6. The

pin. H0 is provided with a hooked end I20. As may readily be seen, this end I20 is arcuate and concentric with the shank II2 so as to swing through an arcuate circle as the pin H0 is rotated from the in position to the out position. The pin is thus rotated by a cam I22 fixedly attached upon the sleeve I23 which may be rotated from an operative to an inoperative position, and vice versa, and locked in such position the same as in the Sherman patent No. 2,000,649. When the pin passes beyond the influence of the cam I22 it is snapped into the down position to clear the apertures of the record material. When in the out or feeding position, the extreme end of the extension I20 is arranged in hooked relation with respect to the record material so as to loosely hold the same in contact with the platen or friction roller. Suitable pins I24 limit the counterclockwise movement of the pins I I0 shown in Fig. 14.

The record material shown in Fig. 17 is provided with round apertures I 25, which need not be much larger in diameter than the diameter of the pins disclosed in Fig. 14 and also the pins to be described in connection with the modifications shown in Figs. 18 to 21.

In the modifications disclosed in Figs. 18 to 21,

the feeding pins I30 are provided with a hooked end or nose I32, arranged to pass through the apertures I26 in the record material and when in extended positionpreventing the record material from clearing the platen or roller, the feeding short distance.

pins I30 having a movement similar to that disclosed in copending application to Sherman and 'Dybvig, Serial No. 12,206 filed March 21, 1935.

Each of. the feeding pins I30 is provided with a helical slot I34 along one side receiving guide pins I30 and I38 found in member I40, as is more fully described in the above referred to application.

The pins I30 are also provided with a transverse notch or slot I42 engaging a cam I44 mounted upon a tubular sleeve I46. The notch I42 cooperating with the cam I44 guides or projects the pins I30 beyond the periphery of the platen'for a v Simultaneously with the pin being projected outwardly, the studs I30 and I38 seated in the, slots I34 urge the pin to advance with respect to the platen, so as to'cause the nose of the pin I32 to override the record material and also causes the body of the pin to engage the leading edge of the aperture "of the record material to give it an impulse movement, so as. to more accurately align the same. The cam I44 cooperates with the notch I42 to retract the feeding pin. As the feeding pi is retracted to within the periphery of the pla en, it is also retarded with respect to the movement of the platen so as to permit the nose I32 to clear or slip through the aperture in the record material. The sleeve I42 may be rotated from an operative to an inoperative position, or vice versa, and locked in either position much the same is disclosed in the'Sherman patent 2,000,649. Cross reference is'also made to copending application of Sherman and Dybvig, Serial No. 12,206, filed March 21', 1935.

From the above description it willbe apparent that there is thus provided a device of the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute, the invention has been described in langauge more or less specific as to structural features it is to beunderstood that the invention is not limited to the specific features shown, but that the means and construction herein disclosed comprise the preferred'form of several modes of putting the invention into effect, and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended'claims.

Having thus described my invention, I claim: 2

1. In a writing machine for use with record material provided with aligned feed holes, a pin feeding device including a support and feeding pins movably mounted upon the support and passing through the feed holes to feed and align the record material, said feeding pins having means for engaging the surface of the record material to hold the same loosely in contact with the feeding pins.

2. In a writing machine for use with record material having aligned feed holes, a pin feedingv device including a travelling support, feeding pins mounted upon the support and passing through the feed holes to feed and align the record material and overhanging means movable differentially relative to the movement of the carrier in a plane parallel to the line of feeding. movement ,of the pins into overhanging'relation engagement with the surface of the record material contiguous to the feed pins for loosely holding the same in contact with the feeding pins.

3. In a writing machine for use with record aligned relation past writing position.

holes to feed and align the record material in r 5. In a writing machine for use with record material provided with aligned feed holes, a platen, a pin feeding device including a support mounted within the platen, feeding pins pivotally mounted upon the support and normally retracted within the-periphery thereof, and means for pivotally swinging the pins beyond the surface of the platen into engagement with and out of engagement with the record material.

6. In awriting machine for use with record.

material provided with aligned feed holes, a pin feeding device including a support, feeding pins pivotally mounted upon the support and means for. oscillating the pins about the pivots to swing the pins through the feed holes into feeding and aligning relation, to feed the record material past the writing position of the writing machine, said feeding pins being provided with extensions loosely holding the record material in contact with the support. 7,

7. In a writing machine for use with record material provided with aligned feed holes, a pin feeding device including a support, feeding pins pivotally mounted'upon the support, said feeding pins having shanks and means engaging the shanks for oscillating the pins about the pivots to swing the same through the feeding holes to feed the record material in aligned relation past writing position said feeding pins being provided with extensions which overlap the writing surface of the record material.

8. In a writingmachine for use with record material provided with aligned feed holes, a pin feeding device including a support, feeding pins pivotally mounted uponthe support, each of said feeding pins being provided with a-shank at one end and alateral extension at the other and means engaging the'shank for oscillating its pin about thepivot to swing the pin with its extension through thefeeding holes to feed the record material in aligned relation pastwriting position, the extension loosely engaging the record materia'l to hold it in position.

9. In a writing machine for use with record materialprovided with aligned feed holes, a pin feeding device inclduing a support, feeding pins pivotally mounted in said supp rt having longi-- supports, feeding pins mounted in said supports I and means for oscillating the supports and the feeding pins about the. pivots to swing the feeding pins into engagement with the record material said pins having extensionswhich overlap the writing surface of the record material.

11. In a writing machine for use with record material provided with aligned feed holes, a pin feeding deviceincluding a plurality of pivotal supports, feeding pins mounted insaid supports,

said feeding pins having longitudinal movement with respect to said: supports, means r for oscillating the supports and their feedingpins into engagement with the record material and means for moving the feeding pins longitudinally while in engagement with the record material.

12. In a'writingmachine for use with record material provided with aligned feed holes, a pin feeding device including a plurality of movable supports, swinging feeding pins mounted in said supports, said feeding pins having a longitudinal movement with respect to their supports and means for moving the feeding pins longitudinally while in engagement with the record material.

13. In a writingmachine for use with record material provided with aligned feed holes, a pin feeding device including a plurality of pivotal supports, each of which supports has a feeding pin having longitudinal 'movement therein, the

feeding pins having extensions overhanging the record material while in engagement therewith and megns for moving the feeding pins longitudinally in .said supports to bring the extensions into engagement with the rec d material.

th record 14. In a writing machine for use material provided with aligned feed holes, a movable platen, a pinfeedingdevice associated with said platen, said pin feeding device including a support, feeding pins pivotally mounted upon the support and means for swinging the pins about the pivots in the plane of rotation of the platen into and outer engagement with the record material. I 15. In a writing machine for use with record adapted to overlap the writing surface of the.

record material. a V

16. ha writing machinefor use with record material provided with aligned feed holesa platen, a pin feeding device associated with the platen, swinging feeding pin devices for advancing the record material past the platen, each of the feeding pin devices including" a pivotally mount! ed support, a feeding pinmounted inthe support and means for swinging the feeding pins through the holes in the record material to feed and align 1 the record material when passing the writing position of the-platen said feeding pins having portions adapted to overlap the writing surface of the record material. a

17'. Ina writing machine for use with record material provided with aligned feed holes, a ro-' tary platen, feeding pins pivotally mounted in a said platen, saidpins oscillating about their pivots to pass through the feed holes and to loosely engage the record material.

18. In a writing machine for use with record material having aligned feed holes a rotary platen, pivotally mounted feeding pins supported in said platen and arranged to pass through the feed holes to feed and align the record material and overhanging means carried by the feeding pins moving into engagement with the surface of the record material for loosely holding the same in contact with the feeding pins.

19. In a writing machine for use with record material provided with aligned feed holes.

tary platen, feeding pins movably mounted, in

said platen and'arranged to pass through said 1 feed holes, said feeding pins having means forv the record material and means carried by the ieeding pins moving into engagement with the surface of the record material to loosely hold the same in contact with the platen.

21. In a writing machine for use with record material having feed holes adjacent the marginal edges thereof, a travelling carrier for the record material, and a feeding and aligning device for the record material including members travelling with the carrier and movable in a plane parallel to the line of movement of the carrier into engagement with the feed holes and into overlapping relation with the marginal portion of the record material.

22. In a writing machine for use with record material having feed holes adjacent the marginal edges thereof, a travelling carrier for the record material, and a feeding and aligning device for the record material including pivoted members travelling with the carrier and movable about their pivots in a plane parallel to the line of movement of the carrier into engagement with the feed holes and into overlapping relation with the marginal portion of the record material.

23. In a writing machine for use with record material having reed holes adjacent the marginal edge thereof, a travelling carrier for the record material, and a feeding and aligning device for the record material including pivotal members travelling with the carrier and movable about their pivots in a plane parallel to the line of movement of the carrier into engagement with the feed holes and into overlapping relation with the marginal portion of the record material.

HENRY G. DYBVIG. 

